Rails + Google Calendar API events not created - ruby-on-rails

Question

I created rails web app. When user make some actions, my app must create new event in my Google Calendar. For my task I choose server-to-server authorization.
I wrote next ruby code:
client = Google::APIClient.new({:application_name => "Rails calendar",
:application_version => "1.0"})
keypath = Rails.root.join('config','google_secrets.p12').to_s
key = Google::APIClient::PKCS12.load_key(keypath, "notasecret")
# generate request body for authorization
client.authorization = Signet::OAuth2::Client.new(
:token_credential_uri => 'https://accounts.google.com/o/oauth2/token',
:audience => 'https://accounts.google.com/o/oauth2/token',
:scope => 'https://www.googleapis.com/auth/calendar',
:issuer => '***',
:signing_key => key).tap{ |auth| auth.fetch_access_token! }
api_method = client.discovered_api('calendar','v3').events.insert
#meeting_data = {
guests: [{email: '***#gmail.com'}, {email: '***#gmail.com'}],
start_time: "2016-08-10T19:00:00+03:00",
end_time: "2016-08-10T20:00:00+03:00",
topic: "Test meeting",
messages_thread_id: 2
}
event = {
summary: #meeting_data[:topic],
start: {
dateTime: #meeting_data[:start_time],
time_zone: 'Asia/Jerusalem'
},
end: {
dateTime: #meeting_data[:end_time],
time_zone: 'Asia/Jerusalem'
},
attendees: #meeting_data[:guests],
visibility: 'private',
reminders: {
useDefault: true,
}
}
result = client.execute(:api_method => api_method,
:parameters => {calendarId: 'primary'},
:body => JSON.dump(event),
:headers => {'Content-Type' => 'application/json'})
puts result.data.as_json
But when i try to use that code and server return me result as JSON, if I go on url of "created" event, google show me message that event does not exist.
{"kind"=>"calendar#event", "etag"=>"***", "id"=>"***", "status"=>"confirmed", "htmlLink"=>"https://www.google.com/calendar/event?eid=***", "created"=>"2016-08-04T11:54:46.000Z", "updated"=>"2016-08-04T11:54:46.327Z", "summary"=>"Test meeting", "creator"=>{"email"=>"***", "self"=>true}, "organizer"=>{"email"=>"***", "self"=>true}, "start"=>{"dateTime"=>"2016-08-10T16:00:00Z", "timeZone"=>"Asia/Jerusalem"}, "end"=>{"dateTime"=>"2016-08-10T17:00:00Z", "timeZone"=>"Asia/Jerusalem"}, "visibility"=>"private", "iCalUID"=>"***", "sequence"=>0, "attendees"=>[{"email"=>"***#gmail.com", "displayName"=>"***", "responseStatus"=>"needsAction"}, {"email"=>"***#gmail.com", "displayName"=>"***", "responseStatus"=>"needsAction"}], "reminders"=>{"useDefault"=>true}}

Answer 1

I faced with same problem. Needed give write rules to "client_email" for calendar.
You use organization calendar. Thats why only organization admin can do it.